Advance Your Career in Natural Refrigeration

Advance your career in natural refrigeration with IIAR’s Academy of Natural Refrigerants. These courses provide practical, standards-based training to support safe operation, compliance, and professional development.

About the Academy of Natural Refrigerants (ANR)

The Academy of Natural Refrigerants (ANR) is IIAR’s professional training program dedicated to natural refrigeration. Designed for engineers, technicians, and industry professionals, ANR courses provide practical, standards-based knowledge to help you design, operate, and maintain safe and efficient systems.

Through industry-recognized certification, ANR supports career advancement, regulatory compliance, and continuing professional development.

What You’ll Gain

  • Industry-recognized certification based on IIAR standards
  • Practical, real-world knowledge you can apply immediately
  • Professional Development Hours (PDH) for engineers
  • Improved safety, compliance, and system performance
  • Skills to advance your career in industrial refrigeration

Target Audience

  • Engineers designing natural refrigeration systems
  • Technicians responsible for operation and maintenance
  • Facility managers overseeing compliance and safety
  • Industry professionals looking to expand their expertise

How It Works

  1. Enroll in a course
  2. Complete self-paced training modules
  3. Pass quizzes and final exam
  4. Earn your ANR certificate

All courses are online and designed to fit your schedule. 

Most certificate courses are approved for IIAR PDH, and several are also eligible for RCEP credit. Below is a simplified overview of the current course offerings.

Featured Course

Piping Handbook Chapter 1 Certificate Course

Self-Paced Online Course

Learn the fundamentals of ammonia pipe sizing using pressure drop principles, velocity, mass flow, and practical application examples from Chapter 1 of the Ammonia Piping Handbook.

Course Description

This self-paced certificate course introduces the fundamentals of closed-circuit ammonia refrigeration system pipe sizing using pressure drop principles. Participants will learn how line sizing is influenced by temperature change, pressure drop, velocity, mass flow, and nomographs. 

Learn More Purchase Piping Handbook

Certificate Course Offerings

ANSI/IIAR 2 +

PDH: 6.0 (English) | 6.25 (Spanish)

Standards for Safe Design of Closed-Circuit Ammonia Refrigeration Systems

ANSI/IIAR 4 +

PDH: 1.75 (English) | 2.0 (Spanish)

Installation of Closed-Circuit Ammonia Refrigeration Systems

ANSI/IIAR 6 +

PDH: 5.0 (English) | 5.75 (Spanish)

Standard for Inspection, Testing, and Maintenance of Closed-Circuit Ammonia Refrigeration Systems

ANSI/IIAR 7 +

PDH: 3.0 (English) | 3.5 (Spanish)

American National Standard for Developing Operating Procedures for Closed-Circuit Ammonia Refrigeration Systems

ANSI/IIAR 9 +

PDH: 1.75 (English) | 2.25 (Spanish)

Covers equipment and system documentation and safety requirements.

Estimating Accidental Refrigerant Releases +

1.5 PDH

Learn to estimate accidental refrigerant releases and apply the methodology.

Process Safety Management & Risk Management Program Guidelines +

5.75 PDH

Develop compliant PSM/RMP programs and improve facility safety.

Planning and Performing an Effective PHA Program +

3.0 PDH

Learn PHA fundamentals and execution.

Ammonia Refrigeration Management (ARM) Program +

5.0 PDH

Management practices for facilities not covered by PSM/RMP.

Need more information? See our  Frequently Asked Questions  or email us at [email protected].